Thanks for the reply, John. I think for now I will simply use the .str() method for mpfr_float, since my policies for printing numbers need the entire number (or really, some portion of the number which is known at runtime, but not necessarily at compile time). Any help from the Boost.Spirit people on connecting Boost.Multiprecision variable-precision types would be swell. I am happy to help with this. I already use Spirit.Qi for parsing, and love it, so really want to be able to use Karma in full, as well. Thanks, Daniel

---------- Forwarded message ---------- From: John Maddock <jz.maddock@googlemail.com> To: boost-users@lists.boost.org Cc: Date: Wed, 3 Aug 2016 18:14:05 +0100 Subject: Re: [Boost-users] [spirit][karma] multiprecision modf

Here's the new error message:

...

In file included from test/generating/mpfr_float.cpp:27: In file included from ./include/bertini2/io/generators.hpp:44: In file included from /usr/local/include/boost/spiri t/include/karma.hpp:16: In file included from /usr/local/include/boost/spirit/home/karma.hpp:15: In file included from /usr/local/include/boost/spiri t/home/karma/numeric.hpp:16: In file included from /usr/local/include/boost/spiri t/home/karma/numeric/real.hpp:32: /usr/local/include/boost/spirit/home/karma/numeric/real_policies.hpp:263:39: error: incompatible operand types ('int' and 'typename enable_if_c<number_category<detail::expression<function, log10_funct<mpfr_float_backend<0, allocate_dynamic> >, number<mpfr_float_backend<0, allocate_dynamic>, boost::multiprecision::expression_template_option::et_on>, void, void> >::value == number_kind_floating_point, detail::expression<detail::function, detail::floor_funct<typename detail::backend_type<detail::expression<function, log10_funct<mpfr_float_backend<0, allocate_dynamic> >, number<mpfr_float_backend<0, allocate_dynamic>, boost::multiprecision::expression_template_option::et_on>, void, void>

...

::type>, detail::expression<function, log10_funct<mpfr_float_backend<0, allocate_dynamic> >, number<mpfr_float_backend<0, allocate_dynamic>, boost::multiprecision::expression_template_option::et_on>, void, void> > >::type' (aka 'boost::multiprecision::detail ::expression<boost::multiprecision::detail::function, boost::multiprecision::detail::floor_funct<boost::multipreci sion::backends::mpfr_float_backend<0, allocate_dynamic> >, boost::multiprecision::detail::expression<boost::multiprecis ion::detail::function, boost::multiprecision::detail::log10_funct<boost::multipreci sion::backends::mpfr_float_backend<0, allocate_dynamic> >, boost::multiprecision::number<boost::multiprecision::backends::mpfr_float_backend<0, allocate_dynamic>, boost::multiprecision::expression_template_option::et_on>, void, void>, void, void>')) (traits::test_zero(n) ? 0 : floor(log10(n))) + 1;

I'm afraid that code is incompatible with expression templates: the two halves of the conditional expression have different/unrelated types which aren't convertible to each other. An explicit cast is needed here to make the code expression-template compatible. Or else use a number type with expression templates turned off. Suggest you contact the spirit developers (they have their own mailing list I believe) and see what their intent is here.

As a last question, I am unsure about the use of the a function parameter

...

in my specialization BertiniNumPolicy<mpfr_float>, particularly the precision(mpfr_float) function. In the documentation and examples I have seen for specializations, this function doesn't use the argument. Is it ok that it does, that it checks the actual precision of x??? See above code. An alternate method for me might be to just use the str() method provided by the number<...> from Multiprecision, but it seems like since this type is numeric, I'd like to be able to generate using the numeric generators from Karma.

That looks to be the intent yes. Note however, that it's a conceptual requirement of karma that the number have numeric_limits specialized - that's not true for type mpfr_float since most of the fields would have to vary at runtime which isn't possible for numeric_limits. Technically we could provide a specialization that defines the members that are constant and leaves the others as undefined/zero/infinity, but it's not clear what's the right thing to do here - numeric_limits wasn't designed for this kind of type it seems :(

I'm changing the subject line to include spirit/karma in hopes that their developers will see this and chip in.... we should really find a way to make the libraries work better together.

HTH, John.

---------- Forwarded message ---------- From: Gavin Lambert <gavinl@compacsort.com> To: boost-users@lists.boost.org Cc: Date: Thu, 4 Aug 2016 16:05:12 +1200 Subject: Re: [Boost-users] boost::serialization::array for Orocos RTT On 3/08/2016 23:29, Sambeet Panigrahi wrote:

...

I gave the following includes #include <boost/serialization/array.hpp> #include <boost/array.hpp>

I know boost::array exists,but does boost::serialization::array exist?Because in the namespace serialization in the boost/serialization/array.hpp, I could not find such a template.

namespace boost { namespace serialization {

[...]

...

template<class T> class array_wrapper : public wrapper_traits<const array_wrapper< T > >

Looks like it's called array_wrapper instead of array in your version.

Which is odd, since you claimed to be using 1.44, and these say differently:

http://www.boost.org/doc/libs/1_44_0/boost/serialization/array.hpp

https://github.com/boostorg/serialization/blob/1b9dc31ba/inc lude/boost/serialization/array.hpp

If you obtained the Boost library from an SDK vendor instead of directly from Boost, you should probably ask them why it is different.

---------- Forwarded message ---------- From: "deneme.true" <deneme.true@gmail.com> To: boost-users@lists.boost.org Cc: Date: Thu, 4 Aug 2016 10:40:22 +0300 Subject: [Boost-users] Serialization error Hello,

I got following errors on 64 bit machine when I try to compile my application.

1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::text_iarchive_impl<class boost::archive::text_iarchive>::text_iarchive_impl<class boost::archive::text_iarchive>(class std::basic_istream<char,struct std::char_traits<char> > &,unsigned int)" (??0?$text_iarchive_impl@Vtext_iarchive@archive@boost@@@archive@boost @@IEAA@AEAV?$basic_istream@DU?$char_traits@D@std@@@std@@I@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::archive::text_iarchive_impl<class boost::archive::text_iarchive>::load_override(struct boost::archive::class_name_type &)" (?load_override@?$text_iarchive_impl@Vtext_iarchive@archive@boost @@@archive@boost@@IEAAXAEAUclass_name_type@23@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::archive::text_iarchive_impl<class boost::archive::text_iarchive>::load(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)" (?load@?$text_iarchive_impl@Vtext_iarchive@archive@boost@@@archive@boost @@IEAAXAEAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@ Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::basic_text_iprimitive<class std::basic_istream<char,struct std::char_traits<char> >

...

::~basic_text_iprimitive<class std::basic_istream<char,struct std::char_traits<char> > >(void)" (??1?$basic_text_iprimitive@V?$basic_istream@DU?$char_traits@D@std@@@std@ @@archive@boost@@IEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::basic_text_oprimitive<class std::basic_ostream<char,struct std::char_traits<char> > ::~basic_text_oprimitive<class std::basic_ostream<char,struct std::char_traits<char> > >(void)" (??1?$basic_text_oprimitive@V?$basic_ostream@DU?$char_traits@D@std@@@std@ @@archive@boost@@IEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::text_oarchive_impl<class boost::archive::text_oarchive>::text_oarchive_impl<class boost::archive::text_oarchive>(class std::basic_ostream<char,struct std::char_traits<char> > &,unsigned int)" (??0?$text_oarchive_impl@Vtext_oarchive@archive@boost@@@archive@boost @@IEAA@AEAV?$basic_ostream@DU?$char_traits@D@std@@@std@@I@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::archive::text_oarchive_impl<class boost::archive::text_oarchive>::save(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?save@?$text_oarchive_impl@Vtext_oarchive@archive@boost@@@archive@boost @@IEAAXAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@ Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: virtual __cdecl boost::archive::detail::basic_iserializer::~basic_iserializer(void)" (??1basic_iserializer@detail@archive@boost@@MEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::detail::basic_iserializer::basic_iserializer(class boost::serialization::extended_type_info const &)" (??0basic_iserializer@detail@archive@boost@@IEAA@AEBVextended_type_info@ serialization@3@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: virtual __cdecl boost::archive::detail::basic_oserializer::~basic_oserializer(void)" (??1basic_oserializer@detail@archive@boost@@MEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::archive::detail::basic_oserializer::basic_oserializer(class boost::serialization::extended_type_info const &)" (??0basic_oserializer@detail@archive@boost@@IEAA@AEBVextended_type_info@ serialization@3@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: void __cdecl boost::archive::detail::basic_iarchive::reset_object_address(void const *,void const *)" (?reset_object_address@basic_iarchive@detail@archive@boost@@QEAAXPEBX0@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: class boost::archive::library_version_type __cdecl boost::archive::detail::basic_iarchive::get_library_version(void)const " (?get_library_version@basic_iarchive@detail@archive@boost@ @QEBA?AVlibrary_version_type@34@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: void __cdecl boost::archive::detail::basic_iarchive::load_object(void *,class boost::archive::detail::basic_iserializer const &)" (?load_object@basic_iarchive@detail@archive@boost@@QEAAXPEAXAEBVbasic_ iserializer@234@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: virtual __cdecl boost::archive::detail::basic_iarchive::~basic_iarchive(void)" (??1basic_iarchive@detail@archive@boost@@UEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: void __cdecl boost::archive::detail::basic_oarchive::end_preamble(void)" (?end_preamble@basic_oarchive@detail@archive@boost@@QEAAXXZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: void __cdecl boost::archive::detail::basic_oarchive::save_object(void const *,class boost::archive::detail::basic_oserializer const &)" (?save_object@basic_oarchive@detail@archive@boost@@QEAAXPEBXAEBVbasic_ oserializer@234@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: virtual __cdecl boost::archive::detail::basic_oarchive::~basic_oarchive(void)" (??1basic_oarchive@detail@archive@boost@@MEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::archive::basic_text_oarchive<class boost::archive::text_oarchive>::newtoken(void)" (?newtoken@?$basic_text_oarchive@Vtext_oarchive@archive@boost @@@archive@boost@@IEAAXXZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: virtual __cdecl boost::archive::archive_exception::~archive_exception(void)" (??1archive_exception@archive@boost@@UEAA@XZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: __cdecl boost::archive::archive_exception::archive_exception(enum boost::archive::archive_exception::_exception_code,char const *,char const *)" (??0archive_exception@archive@boost@@QEAA@W4_exception_code@ 012@PEBD1@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: __cdecl boost::archive::archive_exception::archive_exception(class boost::archive::archive_exception const &)" (??0archive_exception@archive@boost@@QEAA@AEBV012@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::is_equal(class boost::serialization::extended_type_info const &)const " (?is_equal@extended_type_info_typeid_0@typeid_system@serialization@boost @@UEBA_NAEBVextended_type_info@34@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::is_less_than(class boost::serialization::extended_type_info const &)const " (?is_less_than@extended_type_info_typeid_0@typeid_system@ serialization@boost@@UEBA_NAEBVextended_type_info@34@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::type_unregister(void)" (?type_unregister@extended_type_info_typeid_0@typeid_system@serialization @boost@@IEAAXXZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::type_register(class type_info const &)" (?type_register@extended_type_info_typeid_0@typeid_system@ serialization@boost@@IEAAXAEBVtype_info@@@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: virtual __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::~extended_type_info_typeid_0(void)" (??1extended_type_info_typeid_0@typeid_system@serialization@boost@@MEAA@XZ ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: __cdecl boost::serialization::typeid_system::extended_type_info_ typeid_0::extended_type_info_typeid_0(char const *)" (??0extended_type_info_typeid_0@typeid_system@serialization@ boost@@IEAA@PEBD@Z) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::serialization::extended_type_info::key_register(void)const " (?key_register@extended_type_info@serialization@boost@@IEBAXXZ) 1>wxRememberme.obj : error LNK2001: unresolved external symbol "protected: void __cdecl boost::serialization::extended_type_info::key_unregister(void)const " (?key_unregister@extended_type_info@serialization@boost@@IEBAXXZ) 1>libeay32mt.lib(txt_db.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(ui_openssl.obj) : error LNK2001: unresolved external symbol __iob_func 1>ssleay32mt.lib(s3_srvr.obj) : error LNK2001: unresolved external symbol __iob_func 1>ssleay32mt.lib(t1_enc.obj) : error LNK2001: unresolved external symbol __iob_func 1>ssleay32mt.lib(d1_both.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(cryptlib.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(pem_lib.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(e_capi.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(gost_eng.obj) : error LNK2001: unresolved external symbol __iob_func 1>libeay32mt.lib(cryptlib.obj) : error LNK2001: unresolved external symbol _vsnwprintf

My boost library compile parameter is:

C:\boost_1_61_0>b2 install --prefix=C:\Boost1_61_0 address-model=64 --build-dir= C:\boost-build toolset=msvc-14.0 variant=debug,release link=static threading=mul ti runtime-link=static stage

I am using serialization.

Thanks in advance

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